Construction and agricultural drainage parameter optimization considering economic and environmental requirements

Kovalenko, Pyotr; Rokochinskiy, Anatoliy; Mazhayskiy, Yury; Volk, Pavlo; Volk, Liubov; Chernikova, Olga

doi:10.22616/erdev.2020.19.tf237

Cited by 8 publications

(5 citation statements)

References 2 publications

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“…In the development of these approaches, we [3] presented that such a system as part of an agricultural production system (APS) and hydro-reclamation systems (HRS) should be considered as a complex natural and technical, ecological and economic system (CNTEES). A necessary condition is to find a general (global) optimum in such a system only on the basis of the application of system optimization, the essence of which is the sequential determination of local (intermediate) optima for all its main components of heterogeneous elements (in the subsystem effect -mode -technology -design) in their relation.…”

Section: Resultsmentioning

confidence: 99%

“…Based on the results of the considered prerequisites and the performed theoretical analysis on the system optimization of technological and design solutions in CNTEES, which includes DS, the management optimization model underlying the implementation of the optimization approach based on the economic and mathematical method in general form is represented as [3,13]   ( )…”

Section: Resultsmentioning

confidence: 99%

“…It is they, who largely determine the cost of the system, its economic and environmental efficiency. In turn, this will increase the requirements for the quality of assessment, forecasting and optimization of management of water and general natural reclamation regimes of drained lands, as a prerequisite for solving this problem [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Ecological and economic aspects of optimizing the creation and functioning of drainage systems in accordance with modern requirements

et al. 2021

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Land reclamation is important in the development of agricultural production for unfavorable climatic conditions. This necessitates the improvement of scientific and methodological approaches to the creation and operation of water management and reclamation facilities, including drainage systems, which are adapted to these changes. Approaches to the type and design of drainage systems based on a combination of a modern progressive optimization approach with the traditional water balance method, hydrodynamic and hydraulic methods are presented. Approaches to the systemic optimization of technological and design solutions for the creation and operation of drainage systems have been determined. It seems that the drainage system is a complex natural and technical ecological and economic system. Finding the general optimum in such a system based on the system optimization consists in substantiating local optima for all its main components of heterogeneous elements in the system effect - mode - technology - design in their interconnection. The practical implementation of a complex of predictive-simulation and optimization calculations in projects for new construction, reconstruction and modernization of drainage systems based on the developed scientific, methodological, information and software can be carried out using the appropriate toolkit, which is CAD and modern BIM technologies. The transition to optimization methods will improve the feasibility and overall technical, technological, environmental and economic efficiency of the creation and operation of water management and reclamation facilities in accordance with modern requirements.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Ecological and economic aspects of optimizing the creation and functioning of drainage systems in accordance with modern requirements

et al. 2021

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“…Today the existing complex irrigation systems (CIS), primarily in the Polesie zone, have exhausted their resource potential and need reconstruction and modernization to improve the overall technological, economic and environmental efficiency of their functioning, including in terms of climate change [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Formation of water supply modules during irrigation of drained land under climate change and land reclamation conditions

Rokochinskiy¹,

Mazhayskiy

Volk³

et al. 2021

20th International Scientific Conference Engineering for Rural Development Proceedings

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To justify the calculated water supply module for subsurface irrigation of drained lands, as well as for the drainage flow module, empirical, analytical, water-balance methods are similarly used, or it is determined according to recommendations without sufficient economic and environmental justification, which does not meet modern requirements. Therefore, on the basis of simulation modeling for the conditions of the Ukrainian Polesie, the dynamics, as well as the current and weighted average values of the water supply modules during subsurface humidification in various weather and climatic conditions, including taking into account their possible changes, are established, their significant variability in time and space is established, normalized curves of the water supply module security for the main cultivated crops (cereals, potatoes, grasses) on mineral and peat soils are constructed. It is established that both the current and average values of the water supply module under the studied conditions, similar to the drainage flow module, have a pronounced variable character in climatic conditions, the type of crops grown and the type of soil. Its value, both for the identified main factors and for the system as a whole operating in the subsurface humidification mode, differs significantly (more than several times), first of all, both from their maximum current 2.0-3.0 l•s -1 •ha, and from the average vegetation values of 0.39-0.96 l•s -1 •ha, which significantly differs from their recommended calculated values. At the same time, the water demand of cultivated crops increases almost two to three times. This makes it necessary to take into account this variation of this indicator by improving existing methods and approaches to substantiating the calculated value of the water supply module, when developing projects for the reconstruction, modernization, construction and operation of such facilities.

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“…Исследования дренажа, построенного в 70-х годах прошлого века в Литве и Латвии, показали его положительное влияние на водно-воздушный режим осушаемой территории и окружающую среду [6,7].…”

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On the problem of durability of underground drainage in the natural and climatic conditions of the Novgorod region

Balun

2020

Аграрная наука Евро-Северо-Востока

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The article deals with the problem of stable operation of various structures of drainage systems on heavy soils in the natural and climatic conditions of the Novgorod region during the first years after construction and after 30 years of operation. The experiment examines the effectiveness of drainage using shallow drainage structures with the depth of 70 cm and two variants of medium-deep drainage (110 cm) with filling the drainage trench with sand-gravel mixture (PGS) and wood chips to the arable horizon. Analysis of groundwater dynamics showed that the rate of groundwater decline in the early spring period in the first years of operation on all experimental variants was approximately the same: 2.0-2.4 cm/day. In recent years in the shallow drainage variant, the decrease in ground water levels occurred more slowly (2.3 cm/day) compared to the standard drainage variants (3.8-3.9 cm/day). The average humidity of the root layer of the soil during the growing season in experimental closed drainage systems has not increased for 30 years. The average moisture reserves for the growing season in the experimental systems were: 177 mm in the shallow drainage variant in 1991, 168 mm in 2018; 165 and 154 mm for the standard drainage with drainage chips backfill, respectively; 164 and 123 mm in the PGS backfill variant, respectively. The highest reliability and durability were shown by collectors with PGS backfill of the drainage trench, which have maintained a consistently high efficiency over a thirty-year period. During the drought period, shallow drainage systems provided more favorable conditions according to the degree of moisture in the root layer: in 2018, the shortest period of moisture lack in the root layer of the soil (10 days) was observed in shallow drainage systems, and the longest (1 month) - in systems with backfill of the drainage trench with PGS.

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Construction and agricultural drainage parameter optimization considering economic and environmental requirements

Cited by 8 publications

References 2 publications

Ecological and economic aspects of optimizing the creation and functioning of drainage systems in accordance with modern requirements

Ecological and economic aspects of optimizing the creation and functioning of drainage systems in accordance with modern requirements

Formation of water supply modules during irrigation of drained land under climate change and land reclamation conditions

On the problem of durability of underground drainage in the natural and climatic conditions of the Novgorod region

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